In general blackjack as a game has the advantage of usually having some of the lowest house edge odds among casino games.
High stakes live blackjack is not an exclusive table for the casino but rather for VIP players on all the casino that have live games. I think the table he is referring is the own table offered by casino.
Casino like Duelbits, Bitcasino, Stake, BC and many more has this kind of table which you can’t see on other casino. Exclusive table benefits is you can play with less crowded table because the only player who can play and see it are those registered to specific casino unlike the regular table which is available to all live game providers player.
@OP, I rarely play on exclusive table but I have a terrible experience before on BC.game. It’s very hard to conclude but it’s really very hard to win on this table probably because of limited choices. Also there’s a speculation about them that they are using dummy players to filled some sit just to make the cards worst for you in case you are winning. But this just a rumor so there’s nothing concrete to be discussed here aside from what we feel.